Corrugated-fastener machine.



w. H. RAY & E cRAlG.

CORRUGATED FASTENER MACHINE.

APPLICATlON FILED NOV. l0. 1909.

Patented Mar. 14, 1916.

W. H. RAY I E. CRAIG.

.CORRUGATEU FASTENER MACHINE.

APPLICATION FILED Nov. Io. 1909.

1,175,558. Patented Mar. 14, 1916.

5 SHEETS-SHEET 2.

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"'"IIIIIIIIII THE COLUMBIA Fungal-IRAP co.. WASHINGTON, n. c.

W. H. RAY 6L E. CRAIG.

CORRUGATED FASTENER MACHINE.

APPLlcATloN FILED Nov. 1o. 1909.

1,1 '75,5 58. Patented Mar. 14, 1916.

5 SHEETS-SHEET 3.

@ www THE COLUMBIA PLANQORAPH CO.. WASHYNGTGN. D. c.

W. H. RAY @I E. CRAIG.

CORRUGATED FASTENER MACHINE.

APPLICATION FILED Nov. Io. 1909.

l 175,558. Patented Mar. 14, 1916.

5 SHEETS-SHEET 4.

fm Z zz Z 'fz ZIJ W. H. RAY & E. CRAIG.

CORRUGATED FASTENER MACHINE.

APPLICATION HLED Nov. 1o. 1909.

l, 175,558. Patented Mar. 14., 1916.

5 SHEETS-SHEET 5- UNITED STATES PATENT OFFICE.

WILLIAM H. RAY ANI) EDW'ARI) CRAIG, OF S'I. JOSEPH, MICHIGAN, ASSIGNORSTO SARANAC MACHINE CO., 0F ST. JOSEPH, MICHIGAN, A CORPORATION OFMICHIGAN.

CORRUGATED-FAS'IENER MACHINE.

Application filed November 10, 1909.

To all whom it may Concern Be it known that we, VILLIAM H. RAY andEDWARD CRAIG, citizens of the United States of America, and residents ofSt. Joseph, Berrien county, Michigan, have invented a certain new anduseful Improvement in Corrugated-Fastener Machines, of which thefollowing is a specification.

Our invention relates to machines for making and driving corrugatedsheet metal fasteners. A machine of this kind is adapted to feed a sheetmetal strip and cut and drive the same in suitable lengths. Each lengthis formed with corrugations which extend in the direction the fastenersare driven. Fasteners of this kind are now used extensively in themanufacture of articles requiring the fastening together of pieces ofwood.

Our invention relates more particularly to machines which will drive aplurality of the said fasteners at the same time.

Objects of our invention are to provide an improved construction andarrangement whereby a plurality of fastener drivers are arranged tandemand in such manner that a bar, which is supported only at one endsustains the back thrust or strain incident to the driving of severalfasteners :at the same time; to provide simple and eflicient means foradjusting the fastener drivers on the said bar, so as to change theposition thereof; to provide a machine of this kind having the aforesaidfeatures, and having an adjustable table for supporting the work belowthe said bar, and below the said fastener drivers; to provide animproved arrangement whereby one of the said fastener drivers isautomatically rendered inoperative at certain times, so that themachine, after first driving a plurality of fasteners, may then drive asingle fastener, or any number, according to requirements; and toprovide certain details and combinations tending to increase the generalefficiency and serviceability of a machine of this particular character.n

To the foregoing and other useful ends,

Specification of Letters Patent.

Patented Mar. 14, 1916.

Serial No. 527,226.

our inventibn consists in matters hereafter set forth and claimed.

In the accompanying drawings, Figure l is a perspective of a corrugatedsheet metal fastener driving machine embodying the principles of ourinvention. Fig. 2 is a perspective of the mechanism for operating thefeed devices by which the strips or ribbons of metal are fed to thedrivers. Fig. 3 is a view similar to Fig. l, but showing the other sideof the machine. Fig. 4. is a perspective of the star wheel by which thedog for one feed mechanism is automatically tripped in and out. Fig. 5is an end elevation of the mechanism shown in Fig. 2, showing certainparts in section. Fig. G is a perspective of the feed dog shown in Fig.5. Fig. 7 is a side elevation of the mechanism shown in Fig. 5. Fig. 8is a section on line 8 8 in Fig. 5. Fig. 9 is a detail view of thedevice for varying the feed. Fig. 10 is a detail section, on an enlargedscale, of one of the cam connections for operating the drivers. Fig. l1is a detail section on line ll-ll in Fig. 9. Figs. l2 to 18, inclusive,are detail views of the automatic clutch mechanism by which the machineis normally started and then automatically stopped after the driving ofa set of fasteners.

As thus illustrated, and referring more particularly to Figs. l and 8,our invention comprises a base A and a standard or upright B upon whichare mounted the various Operative parts. At its upper end the saidstandard B is provided with bearings b and b fcr the horizontal drivingshaft C. This shaft has a clutch pulley D which is loose thereon, andwhich has clutch teeth d. The clutch member cl has a groove (Z2 and apinion d3, which is also loose on the shaft. The gear wheel Z4 is faston the said shaft C. There is a short countershaft Z5 upon which aremounted the gearwheel d and the pinion (ZT. This shaft is mounted inbearings ZS and Z9 formed at the top of the standard B. The pinion (Z3engages the gear wheel (Z6 and the pinion (ZT engages the gear wheeld4..

Thus the transmission of power is from the pinion Z3 to the gear wheelZ, through the shaft Z5 to the pinion Z1, and from the latter to thegear wheel Zt The pulley'D and the shaft G rctate in the same direction,but the wheel rotates faster than the shaft. The member CZ has a springpressed pin Z1o that has a cam groove Z11 adapted to lie in the grooved2. A lever Z12 has a cam portion Z13 and a locking portion Z11, theformer portion adapted to lie in the groove cZ2. The said lever isoperated by a rod Z15, which latter is in turn operated by a foottreadle Zl Zhen the said treadle is depressed the red 15 moves upwardand throws the cam portion Z13 out of the groove Zgs This releases thepin Z10 and permits the latter to engage the clutch teeth Z, whereby theshaft C is started rctating. The said shaft will rotate as long as theoperator keeps the foot treadle depressed. 1f the said treadle isreleased, the portion Z13 ofthe lever rZ12 engages the cam groove Z11 inthe pin Z110 and causes the latter to disengage theteeth Z, thusstopping the transmission of power to the driving shaft C. The foottreadle Z16 can be locked in depressed position for a full rotation ofthe shaft, and then automatically released, by the rcck shaft Z17 whichhas a portion Z18 adapted to rotate until its round outer side rests ontop of the portion Z14, thus temporarily keeping the portion Z13 fromrentering the groove Z? This shaft Z11 is provided with an arm Z19having a roll d20 engaged by a cam Z21 on the shaft C. A handle Z272 isconnected with a spring F3 that keeps the roll Z2o pressed against thecam Z21, and which causes the shaft Z1T to rock and lock the lever Z12when the projection rn the said cam passes out of engagement with thesaid roll. YVhen the cam depresses the roll d20, the shaft Z11 is rockedto release the lever cZ12, thus causing the machine to stop.

A heavy bar E is secured to the standard B and extends below andparallel with the shaft C. The fastener driving heads F and G, which maybe of any suitable character, are mounted on this bar E. The two headsare connected by a hand screw H, whereby the distance between the twoheads may be varied at will by sliding the head G back and forth on thebar E. These heads have rigid upper portions f and g that support theshaft C, and that serve to connect the driving shaft to the heavy bar E.The said driving heads have feed mechanism f and g that are carriedthereby and adapted to feed the strips of sheet metal from which thefasteners are made.' These feed devices can be of any suitablecharacter, are provided with the usual or any suitable means,

such as the little guides f3 and g3, for holding the sheet metal inposition with its sharp edge downward, and are operated by the ratchetmechanism I. This mechanism I is on a shaft that extends parallel withthe bar E and shaft C. Consequently, the strips of sheet metal are fedcrosswise of the row of driving heads. The heads F and G are providedwith bearings f2 and g2 in which the said shaft is mounted. The rear endof the said shaft is supported in a thread bearing on the body B. Theshaft is geared to operate the feed mechanism f; but the feed mechanismg is operated by a sleeve 2 on the shaft The shaft is provided with aratchet wheel 3, and the said sleeve with a similar ratchet wheel 4. Thearm 5 is loose on the sleeve 2, and has its upper portion pivotallyconnected with the end of the pitman 6, which latter is operated by acam or eccentric on the shaft C. The pivot T that connects 'the arm 5with the pitman G carries the dogs S and 9,

which operate the wheels 3 and Jl respec-V tively. The arm 5 has anextension 1 that carries a ratchet wheel 11 and a star wheel 12, whichrotate together on a bolt or stud 13. The end of the pitman 6 carries adog 11 that operates the ratchet wheel 11.

When a point or tooth of the star wheel 12 Y engages the top of the dog9 the latter is held out of engagement with the Vratchet wheel 4. At onestroke both ratchet wheels 3 and 4 are rotated, but at the next strokeof the pitman 6 the ratchet wheel z'4 does not operate, as the wheel 13has rotated and lifted the dog 9 out of engagement with the wheel 4.Thus at every other stroke only one fastener is driven, as only theVfeed mechanism f is operated. The arm 5 can be reversed or turnedaround on the sleeve 2, so that the star wheel 12 will then engage thedog 8. Thus either feed mechanism can be rendered inoperative and thusone of the drivers will drive a fastener only every other stroke of thesaid feed mechanism. This enables the operator to drive a plurality offasteners, and to then drive one. This is of advantage in certain kindsof work. The feed can be varied at will by means of a handle 15, whichhandle is rigid with a pair of disks 16 and 11, which are adapted toturn on the shaft and the sleeve 2. hese disks have cam depressions 18in which the dogs z's and 9 travel back and forth. By means of a seriesof holes 19 in the disks 17 and a spring pressed pin 2 the said diskscan be held in various positions. one way until the dogs s and 0, ontheir forward stroke, do not enter the depressions 1S as soon as theydid before, and with the result that the feed is shortened. The dogs canonly act on the said ratchet wheels 3 and 4 after the end of the dogsenter the depressions 18, and if this is varied the feed is variedaccordingly. The disks can be rotated to entirely throw the dogs out ofoperation, by adjusting them so that the hole 21 is engaged by the pin20. Another hole 22, when engaged by said pin, causes the dogs todisengage sooner from the ratchet wheels, thus varying the feed inanother way.

The sleeve 2 may be provided with a spline or feather to permit the gearwhich operates the feed mechanism to slide thereon when the portion ofthe head G is changed by the hand wheel I-I.

The shaft C is provided with cams J and K which operate the drivers ofthe heads F and G. In Fig. l0 the cam J is shown connected for operatingthe driver f3 of the head F. These cams are circular and have eccentricgrooves, such as the groove y', for engaging rolls or studs on the upperends of the drivers. For example, the roll or stud f* on the driver f3engages the groove y', whereby the said driver is actuated by therotation of the shaft C.

The table L is adapted to support the work below the driving heads F andG, and is movable up and down by means of the hand screw Z. Thus thework can be raised or lowered at will. The screw Z sustains the thrustof the fastener drivers. The driving heads are arranged tandem, one infront of the other, and the space below is accessible from the front oreither side of the table.

What we claim as our invention is:

l. In a machine for driving corrugated sheet metal fasteners, aplurality of driver heads arranged in a row, a feed shaft, a feed sleeveon said shaft, a feed mechanism for one head operated by said shaft, afeed mechanism for the other head operated by said sleeve, ratchetdevices for operating said shaft and sleeve, and devices for operatingthe operative parts of said heads, the said shaft and row of heads beingparallel, together with a drive shaft for operating said heads and feedshaft, said ratchet devices having a single pitman extending theretofrom said drive shaft.

2. In a machine for driving corrugated sheet metal fasteners, aplurality of driver heads, a feed mechanism for each head, means foractuating said feed mechanisms, and skipping means associated with saidactuating means for causing one feed mechanism to operate only once forevery two operations of the other feed mechanism.

3. In a machine for driving corrugated sheet metal fasteners, a fastenerdriver head, a feed mechanism therefor, means for operating theoperative parts of said head, means whereby said feed mechanism operatesonly once for every two operations of said head, another driver head,and a feed mechanism for said last-mentioned head, operative for eachactuation thereof.

et. In a machine for driving corrugated sheet metal fasteners, ratchetwheels, a dog for each wheel, means for actuating said dogs, and meansincluding a ratchet-operated wheel for causing one dog to operate onlyronce for every plurality of operations of the other dog.

5. In a fastener dr'ving machine, a head having a driver, a shaft, a camon said shaft, provided with a groove in the side thereof, means on saiddriver for engaging said groove, a support for said head, and means forengaging said shaft close to the cam, fixed on said head, to prevent theshaft and support from separating during the driving operation.

6. In a fastener driving machine, a head having a driver, a shaft, a camon said shaft, provided with a groove in the side thereof, means on saiddriver for engaging said groove, a support for said headg and means forengaging said shaft close to the cam, fixed on said head, to prevent theshaft and support from separating during the driving operation, togetherwith means for adjusting said head along said support and shaft.

7. In fastener driving machine, a head having a driver, a shaft, a cam0n said shaft, provided with a groove in the side thereof, means on saiddriver for engaging said groove, a support for said head, means forengaging said shaft close to the cam, fixed on said head, to prevent theshaft and support from separating during the driving operation, togetherwith another drive head and cam, and means for varying the distancebetween said heads.

8. In a fastener drivingl machine, a hori- Zontal bar, a shaft parallelwith said bar, a pluralitv of driver heads on said bar, provided withmeans for preventing separation of the bar and shaft, cams on saidshaft, means on said heads for engaging said cams, and means for varyingthe distance between said heads.

9. In a fastener driving machine. a horizontal bar, a shaft parallelwith said bar, a pluralitv of driver heads on said bar, provided withmeans for preventing separation of the bar and shaft, cams on saidshaft, means on said heads for engaging said cams, and means for varyingthe distance between said heads, comprising a. screw connecting one headwith the other, disposed at one side of said bar.

10. In a fastener driving machine. a hori- Zontal bar, a shaft parallelwith said bar, a plurality of driver heads on said bar, provided withmeans for preventing separation of the bar and shaft, cams on saidshaft, means on said heads for engaging said cams, and means for varyingthe distance between said heads, the head at the disposed at one side ofsaid bar, the head at the outer end of Said bar having a fixed positionthereon.

Signed by us at St. Joseph, Michigan, 15

this th day of November, 1909.

WILLIAM H. RAY. EDWARD CRAIG.

Witnesses:

D. F. SCHOENBECK, E. L. LAKE.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. G.

